Hi everyone,
For modeled based weak form PDEs of Naveir Stokes equation formulation in comsol, there is no inlet and outlet boundary conditions option for velocity and pressure for pipe flow, then how I can implement my inlet, outlet boundary conditions?. Can I use instead Dirichlet boundary conditions. Your help will be strongly appreciated. Thanks in advance.
you can use Dirichlet boundary condition but attention maybe your origin PDEs will be changed.
Thank you so much for your reply. Can you check my modeled equations for channel flow?. I want upload my model. I shall be very thankful if you check it.
As i say, the first PDEs will be changed and to ensure your results, you can compare your results with similar model works as regards to new conditions
Sorry brother to say, but really i am not expert, cannot understand that how the first pdes can be changed?. please, explain little. Thanks.
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